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Stems, leaves, roots and photosynthesis

Stems, leaves, roots and photosynthesis. Plant body. Modified stems/ Stolon. Modified stems/ Rhizome. Modified stems/ Tuber. Modified stems/ Bulb. Modified stems/ Corm. Leaf. A leaf is a stem appendage with a bud in its axil Major function is as a photosynthetic organ.

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Stems, leaves, roots and photosynthesis

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  1. Stems, leaves, roots and photosynthesis

  2. Plant body

  3. Modified stems/ Stolon

  4. Modified stems/ Rhizome

  5. Modified stems/ Tuber

  6. Modified stems/ Bulb

  7. Modified stems/ Corm

  8. Leaf • A leaf is a stem appendage with a bud in its axil • Major function is as a photosynthetic organ

  9. Leaf arrangement on stem • Alternate • Opposite • whorled

  10. Leaves • Blade • Petiole • Leaf type • Simple • compound A leaf is a stem appendage with a bud at its base.

  11. Leaf venation • Parallel ( most monocots) • Pinnate • Palmate • Net • dichotomous

  12. Parallel

  13. Pinnate venation, simple leaf

  14. Palmately divided, palmately veined

  15. Palmate venation, simple leaf, crenate margin

  16. Dichotomous

  17. Palmate venation, simple blade, entire margin, peltate

  18. Double pinnate compound leaf

  19. palmately compound, pinnate veined

  20. Specialized leaves • Plantlets • Insectivory • Spines • tendrils

  21. roots

  22. Tap Fibrous

  23. Photosynthesis/ Respiration • Photosynthesis • 6CO2 + 6H2O+ sunlight+ green plant C6H12O6 + 6O2 + H2O • Carbon dioxide plus water plus sunlight and green plant yields sugar plus oxygen plus water • Cellular Respiration • C6H12O6 + 6O2 + 6H2O 6CO2+ 12H2O + 36 ATP • Sugar plus oxygen plus water yields carbon dioxide plus water plus ATP • Don’t worry about balancing the equations just know what happens on each side of the equation

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